Cupha erymanthis
In 3 days ~50% in a week ~80%
Cupha erymanthis, the rustic, is a species of brush-footed butterfly found in forested areas of tropical South Asia and Southeast Asia. The males and females are identical. The upperside of the rustic is ochraceous light brown. Its forewing displays some loop-like, slender, dark cellular markings with a broad, somewhat curved, transverse yellow discal band from costa to vein 1. The band does not reach the termen but broadens posteriorly.
The margins of the forewing are irregularly sinuous, with the inner defined broadly with black, and produced outwards in interspaces 3 and 4. Below this, the margin is squarely indented inwards in interspace 2 and outwardly convex in interspace 1. There is a curved series of three black spots. The largest is in interspaces 1, 2 and 3. The apical area beyond the band is black, with a conspicuous yellow subapical spot in interspace 5, and a paler ill-defined similar spot above it in interspace 6. In the posterior, the black area is produced narrowly to the tornus and encircles a yellow spot near the apex of interspace 2.
The hindwing features a transverse sinuous and very slender black line. This line is followed by a... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Way Kambas National Park | 🇮🇩 Indonesia | |
| 2 | Periyar National Park | 🇮🇳 India | |
| 3 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 4 | Kerinci Seblat National Park | 🇮🇩 Indonesia | |
| 5 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 6 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia | |
| 7 | Gunung Leuser National Park | 🇮🇩 Indonesia | |
| 8 | Bali Barat National Park | 🇮🇩 Indonesia | |
| 9 | Taman Negara National Park | 🇲🇾 Malaysia | |
| 10 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 11 | Sepilok | 🇲🇾 Malaysia | |
| 12 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 13 | Kinabalu Park | 🇲🇾 Malaysia | |
| 14 | Taroko National Park | 🇹🇼 Taiwan |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Thiruvananthapuram | 🇮🇳 India | |
| 2 | Thrissur | 🇮🇳 India | |
| 3 | Ponnani | 🇮🇳 India | |
| 4 | Hong Kong | 🇨🇳 China | |
| 5 | Xiamen City | 🇨🇳 China | |
| 6 | Singapore | 🇸🇬 Singapore | |
| 7 | Taipei | 🇹🇼 Taiwan | |
| 8 | Tuen Mun | 🇨🇳 China | |
| 9 | Kathmandu | 🇳🇵 Nepal | |
| 10 | Kochi | 🇮🇳 India |
Possible
About 20% of wildlife watchers report a Rustic sighting in Hong Kong on a given day, based on 328 verified sightings from GBIF citizen-science data. It is the 21st most-seen of the 1125 insects we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
August
In that month about 30% of wildlife watchers report a Rustic in Hong Kong on a given day, against about 10% in February and March, the lowest months. That is one of Hong Kong's wettest months, with about 220 mm of rain against 25 mm in December.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Rustic sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 20
Of the 20 cities where we can rate Rustic sightings, Hong Kong ranks 4th at about 20%. The best odds are in Thiruvananthapuram (India, about 30%), Thrissur (India, about 20%) and Ponnani (India, about 20%).
Same family: Nymphalidae
The closest relatives of the Rustic that you can see in Hong Kong (family Nymphalidae, Brush-footed Butterflies) are Ceylon Blue Glassy Tiger (about 30%), Blue-Spotted Crow Butterfly (about 30%) and Great Eggfly (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Rustic is recorded against all the insects logged in Hong Kong (328 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
